Surname Kuvshynov (Кувшинов 
, Kuvshynov 
) , across the world, is a common cognomen. The surname Kuvshynov is characteristic of Russia, where it is quite a rare surname, Kazakhstan, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Кувшинов | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Kuvshynov | Romania, Germany, United States, Ukraine |